/* $Id: DrvIntNet.cpp 60076 2016-03-17 13:38:30Z vboxsync $ */ /** @file * DrvIntNet - Internal network transport driver. */ /* * Copyright (C) 2006-2015 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #define LOG_GROUP LOG_GROUP_DRV_INTNET #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(RT_OS_DARWIN) && defined(IN_RING3) # include #endif #include "VBoxDD.h" /********************************************************************************************************************************* * Defined Constants And Macros * *********************************************************************************************************************************/ /** Enables the ring-0 part. */ #define VBOX_WITH_DRVINTNET_IN_R0 /********************************************************************************************************************************* * Structures and Typedefs * *********************************************************************************************************************************/ /** * The state of the asynchronous thread. */ typedef enum RECVSTATE { /** The thread is suspended. */ RECVSTATE_SUSPENDED = 1, /** The thread is running. */ RECVSTATE_RUNNING, /** The thread must (/has) terminate. */ RECVSTATE_TERMINATE, /** The usual 32-bit type blowup. */ RECVSTATE_32BIT_HACK = 0x7fffffff } RECVSTATE; /** * Internal networking driver instance data. * * @implements PDMINETWORKUP */ typedef struct DRVINTNET { /** The network interface. */ PDMINETWORKUP INetworkUpR3; /** The network interface. */ R3PTRTYPE(PPDMINETWORKDOWN) pIAboveNet; /** The network config interface. * Can (in theory at least) be NULL. */ R3PTRTYPE(PPDMINETWORKCONFIG) pIAboveConfigR3; /** Pointer to the driver instance (ring-3). */ PPDMDRVINSR3 pDrvInsR3; /** Pointer to the communication buffer (ring-3). */ R3PTRTYPE(PINTNETBUF) pBufR3; /** Ring-3 base interface for the ring-0 context. */ PDMIBASER0 IBaseR0; /** Ring-3 base interface for the raw-mode context. */ PDMIBASERC IBaseRC; RTR3PTR R3PtrAlignment; /** The network interface for the ring-0 context. */ PDMINETWORKUPR0 INetworkUpR0; /** Pointer to the driver instance (ring-0). */ PPDMDRVINSR0 pDrvInsR0; /** Pointer to the communication buffer (ring-0). */ R0PTRTYPE(PINTNETBUF) pBufR0; /** The network interface for the raw-mode context. */ PDMINETWORKUPRC INetworkUpRC; /** Pointer to the driver instance. */ PPDMDRVINSRC pDrvInsRC; RTRCPTR RCPtrAlignment; /** The transmit lock. */ PDMCRITSECT XmitLock; /** Interface handle. */ INTNETIFHANDLE hIf; /** The receive thread state. */ RECVSTATE volatile enmRecvState; /** The receive thread. */ RTTHREAD hRecvThread; /** The event semaphore that the receive thread waits on. */ RTSEMEVENT hRecvEvt; /** The transmit thread. */ PPDMTHREAD pXmitThread; /** The event semaphore that the transmit thread waits on. */ SUPSEMEVENT hXmitEvt; /** The support driver session handle. */ PSUPDRVSESSION pSupDrvSession; /** Scatter/gather descriptor cache. */ RTMEMCACHE hSgCache; /** Set if the link is down. * When the link is down all incoming packets will be dropped. */ bool volatile fLinkDown; /** Set when the xmit thread has been signalled. (atomic) */ bool volatile fXmitSignalled; /** Set if the transmit thread the one busy transmitting. */ bool volatile fXmitOnXmitThread; /** The xmit thread should process the ring ASAP. */ bool fXmitProcessRing; /** Set if data transmission should start immediately and deactivate * as late as possible. */ bool fActivateEarlyDeactivateLate; /** Padding. */ bool afReserved[HC_ARCH_BITS == 64 ? 3 : 3]; /** Scratch space for holding the ring-0 scatter / gather descriptor. * The PDMSCATTERGATHER::fFlags member is used to indicate whether it is in * use or not. Always accessed while owning the XmitLock. */ union { PDMSCATTERGATHER Sg; uint8_t padding[8 * sizeof(RTUINTPTR)]; } u; /** The network name. */ char szNetwork[INTNET_MAX_NETWORK_NAME]; /** Number of GSO packets sent. */ STAMCOUNTER StatSentGso; /** Number of GSO packets received. */ STAMCOUNTER StatReceivedGso; /** Number of packets send from ring-0. */ STAMCOUNTER StatSentR0; /** The number of times we've had to wake up the xmit thread to continue the * ring-0 job. */ STAMCOUNTER StatXmitWakeupR0; /** The number of times we've had to wake up the xmit thread to continue the * ring-3 job. */ STAMCOUNTER StatXmitWakeupR3; /** The times the xmit thread has been told to process the ring. */ STAMCOUNTER StatXmitProcessRing; #ifdef VBOX_WITH_STATISTICS /** Profiling packet transmit runs. */ STAMPROFILE StatTransmit; /** Profiling packet receive runs. */ STAMPROFILEADV StatReceive; #endif /* VBOX_WITH_STATISTICS */ #ifdef LOG_ENABLED /** The nano ts of the last transfer. */ uint64_t u64LastTransferTS; /** The nano ts of the last receive. */ uint64_t u64LastReceiveTS; #endif } DRVINTNET; AssertCompileMemberAlignment(DRVINTNET, XmitLock, 8); AssertCompileMemberAlignment(DRVINTNET, StatSentGso, 8); /** Pointer to instance data of the internal networking driver. */ typedef DRVINTNET *PDRVINTNET; /** * Config value to flag translation structure. */ typedef struct DRVINTNETFLAG { /** The value. */ const char *pszChoice; /** The corresponding flag. */ uint32_t fFlag; } DRVINTNETFLAG; /** Pointer to a const flag value translation. */ typedef DRVINTNETFLAG const *PCDRVINTNETFLAG; #ifdef IN_RING3 /** * Updates the MAC address on the kernel side. * * @returns VBox status code. * @param pThis The driver instance. */ static int drvR3IntNetUpdateMacAddress(PDRVINTNET pThis) { if (!pThis->pIAboveConfigR3) return VINF_SUCCESS; INTNETIFSETMACADDRESSREQ SetMacAddressReq; SetMacAddressReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; SetMacAddressReq.Hdr.cbReq = sizeof(SetMacAddressReq); SetMacAddressReq.pSession = NIL_RTR0PTR; SetMacAddressReq.hIf = pThis->hIf; int rc = pThis->pIAboveConfigR3->pfnGetMac(pThis->pIAboveConfigR3, &SetMacAddressReq.Mac); if (RT_SUCCESS(rc)) rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS, &SetMacAddressReq, sizeof(SetMacAddressReq)); Log(("drvR3IntNetUpdateMacAddress: %.*Rhxs rc=%Rrc\n", sizeof(SetMacAddressReq.Mac), &SetMacAddressReq.Mac, rc)); return rc; } /** * Sets the kernel interface active or inactive. * * Worker for poweron, poweroff, suspend and resume. * * @returns VBox status code. * @param pThis The driver instance. * @param fActive The new state. */ static int drvR3IntNetSetActive(PDRVINTNET pThis, bool fActive) { if (!pThis->pIAboveConfigR3) return VINF_SUCCESS; INTNETIFSETACTIVEREQ SetActiveReq; SetActiveReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; SetActiveReq.Hdr.cbReq = sizeof(SetActiveReq); SetActiveReq.pSession = NIL_RTR0PTR; SetActiveReq.hIf = pThis->hIf; SetActiveReq.fActive = fActive; int rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SET_ACTIVE, &SetActiveReq, sizeof(SetActiveReq)); Log(("drvR3IntNetSetActive: fActive=%d rc=%Rrc\n", fActive, rc)); AssertRC(rc); return rc; } #endif /* IN_RING3 */ /* -=-=-=-=- PDMINETWORKUP -=-=-=-=- */ /** * Helper for signalling the xmit thread. * * @returns VERR_TRY_AGAIN (convenience). * @param pThis The instance data.. */ DECLINLINE(int) drvIntNetSignalXmit(PDRVINTNET pThis) { /// @todo if (!ASMAtomicXchgBool(&pThis->fXmitSignalled, true)) - needs careful optimizing. { int rc = SUPSemEventSignal(pThis->pSupDrvSession, pThis->hXmitEvt); AssertRC(rc); STAM_REL_COUNTER_INC(&pThis->CTX_SUFF(StatXmitWakeup)); } return VERR_TRY_AGAIN; } /** * Helper for processing the ring-0 consumer side of the xmit ring. * * The caller MUST own the xmit lock. * * @returns Status code from IntNetR0IfSend, except for VERR_TRY_AGAIN. * @param pThis The instance data.. */ DECLINLINE(int) drvIntNetProcessXmit(PDRVINTNET pThis) { Assert(PDMCritSectIsOwner(&pThis->XmitLock)); #ifdef IN_RING3 INTNETIFSENDREQ SendReq; SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; SendReq.Hdr.cbReq = sizeof(SendReq); SendReq.pSession = NIL_RTR0PTR; SendReq.hIf = pThis->hIf; int rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SEND, &SendReq, sizeof(SendReq)); #else int rc = IntNetR0IfSend(pThis->hIf, pThis->pSupDrvSession); if (rc == VERR_TRY_AGAIN) { ASMAtomicUoWriteBool(&pThis->fXmitProcessRing, true); drvIntNetSignalXmit(pThis); rc = VINF_SUCCESS; } #endif return rc; } /** * @interface_method_impl{PDMINETWORKUP,pfnBeginXmit} */ PDMBOTHCBDECL(int) drvIntNetUp_BeginXmit(PPDMINETWORKUP pInterface, bool fOnWorkerThread) { PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp)); #ifndef IN_RING3 Assert(!fOnWorkerThread); #endif int rc = PDMCritSectTryEnter(&pThis->XmitLock); if (RT_SUCCESS(rc)) { if (fOnWorkerThread) { ASMAtomicUoWriteBool(&pThis->fXmitOnXmitThread, true); ASMAtomicWriteBool(&pThis->fXmitSignalled, false); } } else if (rc == VERR_SEM_BUSY) { /** @todo Does this actually make sense if the other dude is an EMT and so * forth? I seriously think this is ring-0 only... * We might end up waking up the xmit thread unnecessarily here, even when in * ring-0... This needs some more thought and optimizations when the ring-0 bits * are working. */ #ifdef IN_RING3 if ( !fOnWorkerThread /*&& !ASMAtomicUoReadBool(&pThis->fXmitOnXmitThread) && ASMAtomicCmpXchgBool(&pThis->fXmitSignalled, true, false)*/) { rc = SUPSemEventSignal(pThis->pSupDrvSession, pThis->hXmitEvt); AssertRC(rc); } rc = VERR_TRY_AGAIN; #else /* IN_RING0 */ rc = drvIntNetSignalXmit(pThis); #endif /* IN_RING0 */ } return rc; } /** * @interface_method_impl{PDMINETWORKUP,pfnAllocBuf} */ PDMBOTHCBDECL(int) drvIntNetUp_AllocBuf(PPDMINETWORKUP pInterface, size_t cbMin, PCPDMNETWORKGSO pGso, PPPDMSCATTERGATHER ppSgBuf) { PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp)); int rc = VINF_SUCCESS; Assert(cbMin < UINT32_MAX / 2); Assert(PDMCritSectIsOwner(&pThis->XmitLock)); /* * Allocate a S/G descriptor. * This shouldn't normally fail as the NICs usually won't allocate more * than one buffer at a time and the SG gets freed on sending. */ #ifdef IN_RING3 PPDMSCATTERGATHER pSgBuf = (PPDMSCATTERGATHER)RTMemCacheAlloc(pThis->hSgCache); if (!pSgBuf) return VERR_NO_MEMORY; #else PPDMSCATTERGATHER pSgBuf = &pThis->u.Sg; if (RT_UNLIKELY(pSgBuf->fFlags != 0)) return drvIntNetSignalXmit(pThis); #endif /* * Allocate room in the ring buffer. * * In ring-3 we may have to process the xmit ring before there is * sufficient buffer space since we might have stacked up a few frames to the * trunk while in ring-0. (There is not point of doing this in ring-0.) */ PINTNETHDR pHdr = NULL; /* gcc silliness */ if (pGso) rc = IntNetRingAllocateGsoFrame(&pThis->CTX_SUFF(pBuf)->Send, (uint32_t)cbMin, pGso, &pHdr, &pSgBuf->aSegs[0].pvSeg); else rc = IntNetRingAllocateFrame(&pThis->CTX_SUFF(pBuf)->Send, (uint32_t)cbMin, &pHdr, &pSgBuf->aSegs[0].pvSeg); #ifdef IN_RING3 if ( RT_FAILURE(rc) && pThis->CTX_SUFF(pBuf)->cbSend >= cbMin * 2 + sizeof(INTNETHDR)) { drvIntNetProcessXmit(pThis); if (pGso) rc = IntNetRingAllocateGsoFrame(&pThis->CTX_SUFF(pBuf)->Send, (uint32_t)cbMin, pGso, &pHdr, &pSgBuf->aSegs[0].pvSeg); else rc = IntNetRingAllocateFrame(&pThis->CTX_SUFF(pBuf)->Send, (uint32_t)cbMin, &pHdr, &pSgBuf->aSegs[0].pvSeg); } #endif if (RT_SUCCESS(rc)) { /* * Set up the S/G descriptor and return successfully. */ pSgBuf->fFlags = PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1; pSgBuf->cbUsed = 0; pSgBuf->cbAvailable = cbMin; pSgBuf->pvAllocator = pHdr; pSgBuf->pvUser = pGso ? (PPDMNETWORKGSO)pSgBuf->aSegs[0].pvSeg - 1 : NULL; pSgBuf->cSegs = 1; pSgBuf->aSegs[0].cbSeg = cbMin; *ppSgBuf = pSgBuf; return VINF_SUCCESS; } #ifdef IN_RING3 /* * If the above fails, then we're really out of space. There are nobody * competing with us here because of the xmit lock. */ rc = VERR_NO_MEMORY; RTMemCacheFree(pThis->hSgCache, pSgBuf); #else /* IN_RING0 */ /* * If the request is reasonable, kick the xmit thread and tell it to * process the xmit ring ASAP. */ if (pThis->CTX_SUFF(pBuf)->cbSend >= cbMin * 2 + sizeof(INTNETHDR)) { pThis->fXmitProcessRing = true; rc = drvIntNetSignalXmit(pThis); } else rc = VERR_NO_MEMORY; pSgBuf->fFlags = 0; #endif /* IN_RING0 */ return rc; } /** * @interface_method_impl{PDMINETWORKUP,pfnFreeBuf} */ PDMBOTHCBDECL(int) drvIntNetUp_FreeBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf) { PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp)); PINTNETHDR pHdr = (PINTNETHDR)pSgBuf->pvAllocator; #ifdef IN_RING0 Assert(pSgBuf == &pThis->u.Sg); #endif Assert(pSgBuf->fFlags == (PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1)); Assert(pSgBuf->cbUsed <= pSgBuf->cbAvailable); Assert( pHdr->u8Type == INTNETHDR_TYPE_FRAME || pHdr->u8Type == INTNETHDR_TYPE_GSO); Assert(PDMCritSectIsOwner(&pThis->XmitLock)); /** @todo LATER: try unalloc the frame. */ pHdr->u8Type = INTNETHDR_TYPE_PADDING; IntNetRingCommitFrame(&pThis->CTX_SUFF(pBuf)->Send, pHdr); #ifdef IN_RING3 RTMemCacheFree(pThis->hSgCache, pSgBuf); #else pSgBuf->fFlags = 0; #endif return VINF_SUCCESS; } /** * @interface_method_impl{PDMINETWORKUP,pfnSendBuf} */ PDMBOTHCBDECL(int) drvIntNetUp_SendBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf, bool fOnWorkerThread) { PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp)); STAM_PROFILE_START(&pThis->StatTransmit, a); AssertPtr(pSgBuf); Assert(pSgBuf->fFlags == (PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1)); Assert(pSgBuf->cbUsed <= pSgBuf->cbAvailable); Assert(PDMCritSectIsOwner(&pThis->XmitLock)); if (pSgBuf->pvUser) STAM_COUNTER_INC(&pThis->StatSentGso); /* Set an FTM checkpoint as this operation changes the state permanently. */ PDMDrvHlpFTSetCheckpoint(pThis->CTX_SUFF(pDrvIns), FTMCHECKPOINTTYPE_NETWORK); /* * Commit the frame and push it thru the switch. */ PINTNETHDR pHdr = (PINTNETHDR)pSgBuf->pvAllocator; IntNetRingCommitFrameEx(&pThis->CTX_SUFF(pBuf)->Send, pHdr, pSgBuf->cbUsed); int rc = drvIntNetProcessXmit(pThis); STAM_PROFILE_STOP(&pThis->StatTransmit, a); /* * Free the descriptor and return. */ #ifdef IN_RING3 RTMemCacheFree(pThis->hSgCache, pSgBuf); #else STAM_REL_COUNTER_INC(&pThis->StatSentR0); pSgBuf->fFlags = 0; #endif return rc; } /** * @interface_method_impl{PDMINETWORKUP,pfnEndXmit} */ PDMBOTHCBDECL(void) drvIntNetUp_EndXmit(PPDMINETWORKUP pInterface) { PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp)); ASMAtomicUoWriteBool(&pThis->fXmitOnXmitThread, false); PDMCritSectLeave(&pThis->XmitLock); } /** * @interface_method_impl{PDMINETWORKUP,pfnSetPromiscuousMode} */ PDMBOTHCBDECL(void) drvIntNetUp_SetPromiscuousMode(PPDMINETWORKUP pInterface, bool fPromiscuous) { PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp)); #ifdef IN_RING3 INTNETIFSETPROMISCUOUSMODEREQ Req; Req.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; Req.Hdr.cbReq = sizeof(Req); Req.pSession = NIL_RTR0PTR; Req.hIf = pThis->hIf; Req.fPromiscuous = fPromiscuous; int rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE, &Req, sizeof(Req)); #else /* IN_RING0 */ int rc = IntNetR0IfSetPromiscuousMode(pThis->hIf, pThis->pSupDrvSession, fPromiscuous); #endif /* IN_RING0 */ LogFlow(("drvIntNetUp_SetPromiscuousMode: fPromiscuous=%RTbool\n", fPromiscuous)); AssertRC(rc); } #ifdef IN_RING3 /** * @interface_method_impl{PDMINETWORKUP,pfnNotifyLinkChanged} */ static DECLCALLBACK(void) drvR3IntNetUp_NotifyLinkChanged(PPDMINETWORKUP pInterface, PDMNETWORKLINKSTATE enmLinkState) { PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, CTX_SUFF(INetworkUp)); bool fLinkDown; switch (enmLinkState) { case PDMNETWORKLINKSTATE_DOWN: case PDMNETWORKLINKSTATE_DOWN_RESUME: fLinkDown = true; break; default: AssertMsgFailed(("enmLinkState=%d\n", enmLinkState)); case PDMNETWORKLINKSTATE_UP: fLinkDown = false; break; } LogFlow(("drvR3IntNetUp_NotifyLinkChanged: enmLinkState=%d %d->%d\n", enmLinkState, pThis->fLinkDown, fLinkDown)); ASMAtomicXchgSize(&pThis->fLinkDown, fLinkDown); } /* -=-=-=-=- Transmit Thread -=-=-=-=- */ /** * Async I/O thread for deferred packet transmission. * * @returns VBox status code. Returning failure will naturally terminate the thread. * @param pDrvIns The internal networking driver instance. * @param pThread The thread. */ static DECLCALLBACK(int) drvR3IntNetXmitThread(PPDMDRVINS pDrvIns, PPDMTHREAD pThread) { PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET); while (pThread->enmState == PDMTHREADSTATE_RUNNING) { /* * Transmit any pending packets. */ /** @todo Optimize this. We shouldn't call pfnXmitPending unless asked for. * Also there is no need to call drvIntNetProcessXmit if we also * called pfnXmitPending and send one or more frames. */ if (ASMAtomicXchgBool(&pThis->fXmitProcessRing, false)) { STAM_REL_COUNTER_INC(&pThis->StatXmitProcessRing); PDMCritSectEnter(&pThis->XmitLock, VERR_IGNORED); drvIntNetProcessXmit(pThis); PDMCritSectLeave(&pThis->XmitLock); } pThis->pIAboveNet->pfnXmitPending(pThis->pIAboveNet); if (ASMAtomicXchgBool(&pThis->fXmitProcessRing, false)) { STAM_REL_COUNTER_INC(&pThis->StatXmitProcessRing); PDMCritSectEnter(&pThis->XmitLock, VERR_IGNORED); drvIntNetProcessXmit(pThis); PDMCritSectLeave(&pThis->XmitLock); } /* * Block until we've got something to send or is supposed * to leave the running state. */ int rc = SUPSemEventWaitNoResume(pThis->pSupDrvSession, pThis->hXmitEvt, RT_INDEFINITE_WAIT); AssertLogRelMsgReturn(RT_SUCCESS(rc) || rc == VERR_INTERRUPTED, ("%Rrc\n", rc), rc); if (RT_UNLIKELY(pThread->enmState != PDMTHREADSTATE_RUNNING)) break; } /* The thread is being initialized, suspended or terminated. */ return VINF_SUCCESS; } /** * @copydoc FNPDMTHREADWAKEUPDRV */ static DECLCALLBACK(int) drvR3IntNetXmitWakeUp(PPDMDRVINS pDrvIns, PPDMTHREAD pThread) { PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET); return SUPSemEventSignal(pThis->pSupDrvSession, pThis->hXmitEvt); } /* -=-=-=-=- Receive Thread -=-=-=-=- */ /** * Wait for space to become available up the driver/device chain. * * @returns VINF_SUCCESS if space is available. * @returns VERR_STATE_CHANGED if the state changed. * @returns VBox status code on other errors. * @param pThis Pointer to the instance data. */ static int drvR3IntNetRecvWaitForSpace(PDRVINTNET pThis) { LogFlow(("drvR3IntNetRecvWaitForSpace:\n")); STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a); int rc = pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, RT_INDEFINITE_WAIT); STAM_PROFILE_ADV_START(&pThis->StatReceive, a); LogFlow(("drvR3IntNetRecvWaitForSpace: returns %Rrc\n", rc)); return rc; } /** * Executes async I/O (RUNNING mode). * * @returns VERR_STATE_CHANGED if the state changed. * @returns Appropriate VBox status code (error) on fatal error. * @param pThis The driver instance data. */ static int drvR3IntNetRecvRun(PDRVINTNET pThis) { PPDMDRVINS pDrvIns = pThis->pDrvInsR3; LogFlow(("drvR3IntNetRecvRun: pThis=%p\n", pThis)); /* * The running loop - processing received data and waiting for more to arrive. */ STAM_PROFILE_ADV_START(&pThis->StatReceive, a); PINTNETBUF pBuf = pThis->CTX_SUFF(pBuf); PINTNETRINGBUF pRingBuf = &pBuf->Recv; for (;;) { /* * Process the receive buffer. */ PINTNETHDR pHdr; while ((pHdr = IntNetRingGetNextFrameToRead(pRingBuf)) != NULL) { /* * Check the state and then inspect the packet. */ if (pThis->enmRecvState != RECVSTATE_RUNNING) { STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a); LogFlow(("drvR3IntNetRecvRun: returns VERR_STATE_CHANGED (state changed - #0)\n")); return VERR_STATE_CHANGED; } Log2(("pHdr=%p offRead=%#x: %.8Rhxs\n", pHdr, pRingBuf->offReadX, pHdr)); uint8_t u8Type = pHdr->u8Type; if ( ( u8Type == INTNETHDR_TYPE_FRAME || u8Type == INTNETHDR_TYPE_GSO) && !pThis->fLinkDown) { /* * Check if there is room for the frame and pass it up. */ size_t cbFrame = pHdr->cbFrame; int rc = pThis->pIAboveNet->pfnWaitReceiveAvail(pThis->pIAboveNet, 0); if (rc == VINF_SUCCESS) { if (u8Type == INTNETHDR_TYPE_FRAME) { /* * Normal frame. */ #ifdef LOG_ENABLED if (LogIsEnabled()) { uint64_t u64Now = RTTimeProgramNanoTS(); LogFlow(("drvR3IntNetRecvRun: %-4d bytes at %llu ns deltas: r=%llu t=%llu\n", cbFrame, u64Now, u64Now - pThis->u64LastReceiveTS, u64Now - pThis->u64LastTransferTS)); pThis->u64LastReceiveTS = u64Now; Log2(("drvR3IntNetRecvRun: cbFrame=%#x\n" "%.*Rhxd\n", cbFrame, cbFrame, IntNetHdrGetFramePtr(pHdr, pBuf))); } #endif rc = pThis->pIAboveNet->pfnReceive(pThis->pIAboveNet, IntNetHdrGetFramePtr(pHdr, pBuf), cbFrame); AssertRC(rc); /* skip to the next frame. */ IntNetRingSkipFrame(pRingBuf); } else { /* * Generic segment offload frame (INTNETHDR_TYPE_GSO). */ STAM_COUNTER_INC(&pThis->StatReceivedGso); PCPDMNETWORKGSO pGso = IntNetHdrGetGsoContext(pHdr, pBuf); if (PDMNetGsoIsValid(pGso, cbFrame, cbFrame - sizeof(PDMNETWORKGSO))) { if (!pThis->pIAboveNet->pfnReceiveGso || RT_FAILURE(pThis->pIAboveNet->pfnReceiveGso(pThis->pIAboveNet, (uint8_t *)(pGso + 1), pHdr->cbFrame - sizeof(PDMNETWORKGSO), pGso))) { /* * * This is where we do the offloading since this NIC * does not support large receive offload (LRO). */ cbFrame -= sizeof(PDMNETWORKGSO); uint8_t abHdrScratch[256]; uint32_t const cSegs = PDMNetGsoCalcSegmentCount(pGso, cbFrame); #ifdef LOG_ENABLED if (LogIsEnabled()) { uint64_t u64Now = RTTimeProgramNanoTS(); LogFlow(("drvR3IntNetRecvRun: %-4d bytes at %llu ns deltas: r=%llu t=%llu; GSO - %u segs\n", cbFrame, u64Now, u64Now - pThis->u64LastReceiveTS, u64Now - pThis->u64LastTransferTS, cSegs)); pThis->u64LastReceiveTS = u64Now; Log2(("drvR3IntNetRecvRun: cbFrame=%#x type=%d cbHdrsTotal=%#x cbHdrsSeg=%#x Hdr1=%#x Hdr2=%#x MMS=%#x\n" "%.*Rhxd\n", cbFrame, pGso->u8Type, pGso->cbHdrsTotal, pGso->cbHdrsSeg, pGso->offHdr1, pGso->offHdr2, pGso->cbMaxSeg, cbFrame - sizeof(*pGso), pGso + 1)); } #endif for (size_t iSeg = 0; iSeg < cSegs; iSeg++) { uint32_t cbSegFrame; void *pvSegFrame = PDMNetGsoCarveSegmentQD(pGso, (uint8_t *)(pGso + 1), cbFrame, abHdrScratch, iSeg, cSegs, &cbSegFrame); rc = drvR3IntNetRecvWaitForSpace(pThis); if (RT_FAILURE(rc)) { Log(("drvR3IntNetRecvRun: drvR3IntNetRecvWaitForSpace -> %Rrc; iSeg=%u cSegs=%u\n", rc, iSeg, cSegs)); break; /* we drop the rest. */ } rc = pThis->pIAboveNet->pfnReceive(pThis->pIAboveNet, pvSegFrame, cbSegFrame); AssertRC(rc); } } } else { AssertMsgFailed(("cbFrame=%#x type=%d cbHdrsTotal=%#x cbHdrsSeg=%#x Hdr1=%#x Hdr2=%#x MMS=%#x\n", cbFrame, pGso->u8Type, pGso->cbHdrsTotal, pGso->cbHdrsSeg, pGso->offHdr1, pGso->offHdr2, pGso->cbMaxSeg)); STAM_REL_COUNTER_INC(&pBuf->cStatBadFrames); } IntNetRingSkipFrame(pRingBuf); } } else { /* * Wait for sufficient space to become available and then retry. */ rc = drvR3IntNetRecvWaitForSpace(pThis); if (RT_FAILURE(rc)) { if (rc == VERR_INTERRUPTED) { /* * NIC is going down, likely because the VM is being reset. Skip the frame. */ AssertMsg(IntNetIsValidFrameType(pHdr->u8Type), ("Unknown frame type %RX16! offRead=%#x\n", pHdr->u8Type, pRingBuf->offReadX)); IntNetRingSkipFrame(pRingBuf); } else { STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a); LogFlow(("drvR3IntNetRecvRun: returns %Rrc (wait-for-space)\n", rc)); return rc; } } } } else { /* * Link down or unknown frame - skip to the next frame. */ AssertMsg(IntNetIsValidFrameType(pHdr->u8Type), ("Unknown frame type %RX16! offRead=%#x\n", pHdr->u8Type, pRingBuf->offReadX)); IntNetRingSkipFrame(pRingBuf); STAM_REL_COUNTER_INC(&pBuf->cStatBadFrames); } } /* while more received data */ /* * Wait for data, checking the state before we block. */ if (pThis->enmRecvState != RECVSTATE_RUNNING) { STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a); LogFlow(("drvR3IntNetRecvRun: returns VINF_SUCCESS (state changed - #1)\n")); return VERR_STATE_CHANGED; } INTNETIFWAITREQ WaitReq; WaitReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; WaitReq.Hdr.cbReq = sizeof(WaitReq); WaitReq.pSession = NIL_RTR0PTR; WaitReq.hIf = pThis->hIf; WaitReq.cMillies = 30000; /* 30s - don't wait forever, timeout now and then. */ STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a); int rc = PDMDrvHlpSUPCallVMMR0Ex(pDrvIns, VMMR0_DO_INTNET_IF_WAIT, &WaitReq, sizeof(WaitReq)); if ( RT_FAILURE(rc) && rc != VERR_TIMEOUT && rc != VERR_INTERRUPTED) { LogFlow(("drvR3IntNetRecvRun: returns %Rrc\n", rc)); return rc; } STAM_PROFILE_ADV_START(&pThis->StatReceive, a); } } /** * Asynchronous I/O thread for handling receive. * * @returns VINF_SUCCESS (ignored). * @param ThreadSelf Thread handle. * @param pvUser Pointer to a DRVINTNET structure. */ static DECLCALLBACK(int) drvR3IntNetRecvThread(RTTHREAD ThreadSelf, void *pvUser) { PDRVINTNET pThis = (PDRVINTNET)pvUser; LogFlow(("drvR3IntNetRecvThread: pThis=%p\n", pThis)); STAM_PROFILE_ADV_START(&pThis->StatReceive, a); /* * The main loop - acting on state. */ for (;;) { RECVSTATE enmRecvState = pThis->enmRecvState; switch (enmRecvState) { case RECVSTATE_SUSPENDED: { int rc = RTSemEventWait(pThis->hRecvEvt, 30000); if ( RT_FAILURE(rc) && rc != VERR_TIMEOUT) { LogFlow(("drvR3IntNetRecvThread: returns %Rrc\n", rc)); return rc; } break; } case RECVSTATE_RUNNING: { int rc = drvR3IntNetRecvRun(pThis); if ( rc != VERR_STATE_CHANGED && RT_FAILURE(rc)) { LogFlow(("drvR3IntNetRecvThread: returns %Rrc\n", rc)); return rc; } break; } default: AssertMsgFailed(("Invalid state %d\n", enmRecvState)); case RECVSTATE_TERMINATE: LogFlow(("drvR3IntNetRecvThread: returns VINF_SUCCESS\n")); return VINF_SUCCESS; } } } /* -=-=-=-=- PDMIBASERC -=-=-=-=- */ /** * @interface_method_impl{PDMIBASERC,pfnQueryInterface} */ static DECLCALLBACK(RTRCPTR) drvR3IntNetIBaseRC_QueryInterface(PPDMIBASERC pInterface, const char *pszIID) { PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, IBaseRC); #if 0 PDMIBASERC_RETURN_INTERFACE(pThis->pDrvInsR3, pszIID, PDMINETWORKUP, &pThis->INetworkUpRC); #endif return NIL_RTRCPTR; } /* -=-=-=-=- PDMIBASER0 -=-=-=-=- */ /** * @interface_method_impl{PDMIBASER0,pfnQueryInterface} */ static DECLCALLBACK(RTR0PTR) drvR3IntNetIBaseR0_QueryInterface(PPDMIBASER0 pInterface, const char *pszIID) { PDRVINTNET pThis = RT_FROM_MEMBER(pInterface, DRVINTNET, IBaseR0); #ifdef VBOX_WITH_DRVINTNET_IN_R0 PDMIBASER0_RETURN_INTERFACE(pThis->pDrvInsR3, pszIID, PDMINETWORKUP, &pThis->INetworkUpR0); #endif return NIL_RTR0PTR; } /* -=-=-=-=- PDMIBASE -=-=-=-=- */ /** * @interface_method_impl{PDMIBASE,pfnQueryInterface} */ static DECLCALLBACK(void *) drvR3IntNetIBase_QueryInterface(PPDMIBASE pInterface, const char *pszIID) { PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface); PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET); PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase); PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASER0, &pThis->IBaseR0); PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASERC, &pThis->IBaseRC); PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKUP, &pThis->INetworkUpR3); return NULL; } /* -=-=-=-=- PDMDRVREG -=-=-=-=- */ /** * Power Off notification. * * @param pDrvIns The driver instance. */ static DECLCALLBACK(void) drvR3IntNetPowerOff(PPDMDRVINS pDrvIns) { LogFlow(("drvR3IntNetPowerOff\n")); PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET); if (!pThis->fActivateEarlyDeactivateLate) { ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_SUSPENDED); drvR3IntNetSetActive(pThis, false /* fActive */); } } /** * drvR3IntNetResume helper. */ static int drvR3IntNetResumeSend(PDRVINTNET pThis, const void *pvBuf, size_t cb) { /* * Add the frame to the send buffer and push it onto the network. */ int rc = IntNetRingWriteFrame(&pThis->pBufR3->Send, pvBuf, (uint32_t)cb); if ( rc == VERR_BUFFER_OVERFLOW && pThis->pBufR3->cbSend < cb) { INTNETIFSENDREQ SendReq; SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; SendReq.Hdr.cbReq = sizeof(SendReq); SendReq.pSession = NIL_RTR0PTR; SendReq.hIf = pThis->hIf; PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SEND, &SendReq, sizeof(SendReq)); rc = IntNetRingWriteFrame(&pThis->pBufR3->Send, pvBuf, (uint32_t)cb); } if (RT_SUCCESS(rc)) { INTNETIFSENDREQ SendReq; SendReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; SendReq.Hdr.cbReq = sizeof(SendReq); SendReq.pSession = NIL_RTR0PTR; SendReq.hIf = pThis->hIf; rc = PDMDrvHlpSUPCallVMMR0Ex(pThis->pDrvInsR3, VMMR0_DO_INTNET_IF_SEND, &SendReq, sizeof(SendReq)); } AssertRC(rc); return rc; } /** * Resume notification. * * @param pDrvIns The driver instance. */ static DECLCALLBACK(void) drvR3IntNetResume(PPDMDRVINS pDrvIns) { LogFlow(("drvR3IntNetPowerResume\n")); PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET); VMRESUMEREASON enmReason = PDMDrvHlpVMGetResumeReason(pDrvIns); if (!pThis->fActivateEarlyDeactivateLate) { ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_RUNNING); RTSemEventSignal(pThis->hRecvEvt); drvR3IntNetUpdateMacAddress(pThis); /* (could be a state restore) */ drvR3IntNetSetActive(pThis, true /* fActive */); } switch (enmReason) { case VMRESUMEREASON_HOST_RESUME: { uint32_t u32TrunkType; int rc = CFGMR3QueryU32(pDrvIns->pCfg, "TrunkType", &u32TrunkType); AssertRC(rc); /* * Only do the disconnect for bridged networking. Host-only and * internal networks are not affected by a host resume. */ if ( RT_SUCCESS(rc) && u32TrunkType == kIntNetTrunkType_NetFlt) { rc = pThis->pIAboveConfigR3->pfnSetLinkState(pThis->pIAboveConfigR3, PDMNETWORKLINKSTATE_DOWN_RESUME); AssertRC(rc); } break; } case VMRESUMEREASON_TELEPORTED: case VMRESUMEREASON_TELEPORT_FAILED: { if ( PDMDrvHlpVMTeleportedAndNotFullyResumedYet(pDrvIns) && pThis->pIAboveConfigR3) { /* * We've just been teleported and need to drop a hint to the switch * since we're likely to have changed to a different port. We just * push out some ethernet frame that doesn't mean anything to anyone. * For this purpose ethertype 0x801e was chosen since it was registered * to Sun (dunno what it is/was used for though). */ union { RTNETETHERHDR Hdr; uint8_t ab[128]; } Frame; RT_ZERO(Frame); Frame.Hdr.DstMac.au16[0] = 0xffff; Frame.Hdr.DstMac.au16[1] = 0xffff; Frame.Hdr.DstMac.au16[2] = 0xffff; Frame.Hdr.EtherType = RT_H2BE_U16_C(0x801e); int rc = pThis->pIAboveConfigR3->pfnGetMac(pThis->pIAboveConfigR3, &Frame.Hdr.SrcMac); if (RT_SUCCESS(rc)) rc = drvR3IntNetResumeSend(pThis, &Frame, sizeof(Frame)); if (RT_FAILURE(rc)) LogRel(("IntNet#%u: Sending dummy frame failed: %Rrc\n", pDrvIns->iInstance, rc)); } break; } default: /* ignore every other resume reason else */ break; } /* end of switch(enmReason) */ } /** * Suspend notification. * * @param pDrvIns The driver instance. */ static DECLCALLBACK(void) drvR3IntNetSuspend(PPDMDRVINS pDrvIns) { LogFlow(("drvR3IntNetPowerSuspend\n")); PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET); if (!pThis->fActivateEarlyDeactivateLate) { ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_SUSPENDED); drvR3IntNetSetActive(pThis, false /* fActive */); } } /** * Power On notification. * * @param pDrvIns The driver instance. */ static DECLCALLBACK(void) drvR3IntNetPowerOn(PPDMDRVINS pDrvIns) { LogFlow(("drvR3IntNetPowerOn\n")); PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET); if (!pThis->fActivateEarlyDeactivateLate) { ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_RUNNING); RTSemEventSignal(pThis->hRecvEvt); drvR3IntNetUpdateMacAddress(pThis); drvR3IntNetSetActive(pThis, true /* fActive */); } } /** * @interface_method_impl{PDMDRVREG,pfnRelocate} */ static DECLCALLBACK(void) drvR3IntNetRelocate(PPDMDRVINS pDrvIns, RTGCINTPTR offDelta) { /* nothing to do here yet */ } /** * Destruct a driver instance. * * Most VM resources are freed by the VM. This callback is provided so that any non-VM * resources can be freed correctly. * * @param pDrvIns The driver instance data. */ static DECLCALLBACK(void) drvR3IntNetDestruct(PPDMDRVINS pDrvIns) { LogFlow(("drvR3IntNetDestruct\n")); PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET); PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns); /* * Indicate to the receive thread that it's time to quit. */ ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_TERMINATE); ASMAtomicXchgSize(&pThis->fLinkDown, true); RTSEMEVENT hRecvEvt = pThis->hRecvEvt; pThis->hRecvEvt = NIL_RTSEMEVENT; if (hRecvEvt != NIL_RTSEMEVENT) RTSemEventSignal(hRecvEvt); if (pThis->hIf != INTNET_HANDLE_INVALID) { INTNETIFABORTWAITREQ AbortWaitReq; AbortWaitReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; AbortWaitReq.Hdr.cbReq = sizeof(AbortWaitReq); AbortWaitReq.pSession = NIL_RTR0PTR; AbortWaitReq.hIf = pThis->hIf; AbortWaitReq.fNoMoreWaits = true; int rc = PDMDrvHlpSUPCallVMMR0Ex(pDrvIns, VMMR0_DO_INTNET_IF_ABORT_WAIT, &AbortWaitReq, sizeof(AbortWaitReq)); AssertMsg(RT_SUCCESS(rc) || rc == VERR_SEM_DESTROYED, ("%Rrc\n", rc)); } /* * Wait for the threads to terminate. */ if (pThis->pXmitThread) { int rc = PDMR3ThreadDestroy(pThis->pXmitThread, NULL); AssertRC(rc); pThis->pXmitThread = NULL; } if (pThis->hRecvThread != NIL_RTTHREAD) { int rc = RTThreadWait(pThis->hRecvThread, 5000, NULL); AssertRC(rc); pThis->hRecvThread = NIL_RTTHREAD; } /* * Deregister statistics in case we're being detached. */ if (pThis->pBufR3) { PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Recv.cStatFrames); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Recv.cbStatWritten); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Recv.cOverflows); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Send.cStatFrames); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Send.cbStatWritten); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->Send.cOverflows); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatYieldsOk); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatYieldsNok); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatLost); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->cStatBadFrames); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatSend1); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatSend2); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatRecv1); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatRecv2); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->pBufR3->StatReserved); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReceivedGso); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatSentGso); #ifdef VBOX_WITH_STATISTICS PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReceive); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatTransmit); #endif PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatXmitWakeupR0); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatXmitWakeupR3); PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatXmitProcessRing); } /* * Close the interface */ if (pThis->hIf != INTNET_HANDLE_INVALID) { INTNETIFCLOSEREQ CloseReq; CloseReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; CloseReq.Hdr.cbReq = sizeof(CloseReq); CloseReq.pSession = NIL_RTR0PTR; CloseReq.hIf = pThis->hIf; pThis->hIf = INTNET_HANDLE_INVALID; int rc = PDMDrvHlpSUPCallVMMR0Ex(pDrvIns, VMMR0_DO_INTNET_IF_CLOSE, &CloseReq, sizeof(CloseReq)); AssertRC(rc); } /* * Destroy the semaphores, S/G cache and xmit lock. */ if (hRecvEvt != NIL_RTSEMEVENT) RTSemEventDestroy(hRecvEvt); if (pThis->hXmitEvt != NIL_SUPSEMEVENT) { SUPSemEventClose(pThis->pSupDrvSession, pThis->hXmitEvt); pThis->hXmitEvt = NIL_SUPSEMEVENT; } RTMemCacheDestroy(pThis->hSgCache); pThis->hSgCache = NIL_RTMEMCACHE; if (PDMCritSectIsInitialized(&pThis->XmitLock)) PDMR3CritSectDelete(&pThis->XmitLock); } /** * Queries a policy config value and translates it into open network flag. * * @returns VBox status code (error set on failure). * @param pDrvIns The driver instance. * @param pszName The value name. * @param paFlags The open network flag descriptors. * @param cFlags The number of descriptors. * @param fFlags The fixed flag. * @param pfFlags The flags variable to update. */ static int drvIntNetR3CfgGetPolicy(PPDMDRVINS pDrvIns, const char *pszName, PCDRVINTNETFLAG paFlags, size_t cFlags, uint32_t fFixedFlag, uint32_t *pfFlags) { char szValue[64]; int rc = CFGMR3QueryString(pDrvIns->pCfg, pszName, szValue, sizeof(szValue)); if (RT_FAILURE(rc)) { if (rc == VERR_CFGM_VALUE_NOT_FOUND) return VINF_SUCCESS; return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS, N_("Configuration error: Failed to query value of \"%s\""), pszName); } /* * Check for +fixed first, so it can be stripped off. */ char *pszSep = strpbrk(szValue, "+,;"); if (pszSep) { *pszSep++ = '\0'; const char *pszFixed = RTStrStripL(pszSep); if (strcmp(pszFixed, "fixed")) { *pszSep = '+'; return PDMDrvHlpVMSetError(pDrvIns, VERR_INVALID_PARAMETER, RT_SRC_POS, N_("Configuration error: The value of \"%s\" is unknown: \"%s\""), pszName, szValue); } *pfFlags |= fFixedFlag; RTStrStripR(szValue); } /* * Match against the flag values. */ size_t i = cFlags; while (i-- > 0) if (!strcmp(paFlags[i].pszChoice, szValue)) { *pfFlags |= paFlags[i].fFlag; return VINF_SUCCESS; } if (!strcmp(szValue, "none")) return VINF_SUCCESS; if (!strcmp(szValue, "fixed")) { *pfFlags |= fFixedFlag; return VINF_SUCCESS; } return PDMDrvHlpVMSetError(pDrvIns, VERR_INVALID_PARAMETER, RT_SRC_POS, N_("Configuration error: The value of \"%s\" is unknown: \"%s\""), pszName, szValue); } /** * Construct a TAP network transport driver instance. * * @copydoc FNPDMDRVCONSTRUCT */ static DECLCALLBACK(int) drvR3IntNetConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags) { PDRVINTNET pThis = PDMINS_2_DATA(pDrvIns, PDRVINTNET); bool f; PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns); /* * Init the static parts. */ pThis->pDrvInsR3 = pDrvIns; #ifdef VBOX_WITH_DRVINTNET_IN_R0 pThis->pDrvInsR0 = PDMDRVINS_2_R0PTR(pDrvIns); #endif pThis->hIf = INTNET_HANDLE_INVALID; pThis->hRecvThread = NIL_RTTHREAD; pThis->hRecvEvt = NIL_RTSEMEVENT; pThis->pXmitThread = NULL; pThis->hXmitEvt = NIL_SUPSEMEVENT; pThis->pSupDrvSession = PDMDrvHlpGetSupDrvSession(pDrvIns); pThis->hSgCache = NIL_RTMEMCACHE; pThis->enmRecvState = RECVSTATE_SUSPENDED; pThis->fActivateEarlyDeactivateLate = false; /* IBase* */ pDrvIns->IBase.pfnQueryInterface = drvR3IntNetIBase_QueryInterface; pThis->IBaseR0.pfnQueryInterface = drvR3IntNetIBaseR0_QueryInterface; pThis->IBaseRC.pfnQueryInterface = drvR3IntNetIBaseRC_QueryInterface; /* INetworkUp */ pThis->INetworkUpR3.pfnBeginXmit = drvIntNetUp_BeginXmit; pThis->INetworkUpR3.pfnAllocBuf = drvIntNetUp_AllocBuf; pThis->INetworkUpR3.pfnFreeBuf = drvIntNetUp_FreeBuf; pThis->INetworkUpR3.pfnSendBuf = drvIntNetUp_SendBuf; pThis->INetworkUpR3.pfnEndXmit = drvIntNetUp_EndXmit; pThis->INetworkUpR3.pfnSetPromiscuousMode = drvIntNetUp_SetPromiscuousMode; pThis->INetworkUpR3.pfnNotifyLinkChanged = drvR3IntNetUp_NotifyLinkChanged; /* * Validate the config. */ PDMDRV_VALIDATE_CONFIG_RETURN(pDrvIns, "Network" "|Trunk" "|TrunkType" "|ReceiveBufferSize" "|SendBufferSize" "|SharedMacOnWire" "|RestrictAccess" "|RequireExactPolicyMatch" "|RequireAsRestrictivePolicy" "|AccessPolicy" "|PromiscPolicyClients" "|PromiscPolicyHost" "|PromiscPolicyWire" "|IfPolicyPromisc" "|TrunkPolicyHost" "|TrunkPolicyWire" "|IsService" "|IgnoreConnectFailure" "|Workaround1", ""); /* * Check that no-one is attached to us. */ AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER, ("Configuration error: Not possible to attach anything to this driver!\n"), VERR_PDM_DRVINS_NO_ATTACH); /* * Query the network port interface. */ pThis->pIAboveNet = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKDOWN); if (!pThis->pIAboveNet) { AssertMsgFailed(("Configuration error: the above device/driver didn't export the network port interface!\n")); return VERR_PDM_MISSING_INTERFACE_ABOVE; } pThis->pIAboveConfigR3 = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMINETWORKCONFIG); /* * Read the configuration. */ INTNETOPENREQ OpenReq; RT_ZERO(OpenReq); OpenReq.Hdr.cbReq = sizeof(OpenReq); OpenReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; OpenReq.pSession = NIL_RTR0PTR; /** @cfgm{Network, string} * The name of the internal network to connect to. */ int rc = CFGMR3QueryString(pCfg, "Network", OpenReq.szNetwork, sizeof(OpenReq.szNetwork)); if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"Network\" value")); strcpy(pThis->szNetwork, OpenReq.szNetwork); /** @cfgm{TrunkType, uint32_t, kIntNetTrunkType_None} * The trunk connection type see INTNETTRUNKTYPE. */ uint32_t u32TrunkType; rc = CFGMR3QueryU32(pCfg, "TrunkType", &u32TrunkType); if (rc == VERR_CFGM_VALUE_NOT_FOUND) u32TrunkType = kIntNetTrunkType_None; else if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"TrunkType\" value")); OpenReq.enmTrunkType = (INTNETTRUNKTYPE)u32TrunkType; /** @cfgm{Trunk, string, ""} * The name of the trunk connection. */ rc = CFGMR3QueryString(pCfg, "Trunk", OpenReq.szTrunk, sizeof(OpenReq.szTrunk)); if (rc == VERR_CFGM_VALUE_NOT_FOUND) OpenReq.szTrunk[0] = '\0'; else if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"Trunk\" value")); OpenReq.fFlags = 0; /** @cfgm{SharedMacOnWire, boolean, false} * Whether to shared the MAC address of the host interface when using the wire. When * attaching to a wireless NIC this option is usually a requirement. */ bool fSharedMacOnWire; rc = CFGMR3QueryBoolDef(pCfg, "SharedMacOnWire", &fSharedMacOnWire, false); if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"SharedMacOnWire\" value")); if (fSharedMacOnWire) OpenReq.fFlags |= INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE; /** @cfgm{RestrictAccess, boolean, true} * Whether to restrict the access to the network or if it should be public. * Everyone on the computer can connect to a public network. * @deprecated Use AccessPolicy instead. */ rc = CFGMR3QueryBool(pCfg, "RestrictAccess", &f); if (RT_SUCCESS(rc)) { if (f) OpenReq.fFlags |= INTNET_OPEN_FLAGS_ACCESS_RESTRICTED; else OpenReq.fFlags |= INTNET_OPEN_FLAGS_ACCESS_PUBLIC; OpenReq.fFlags |= INTNET_OPEN_FLAGS_ACCESS_FIXED; } else if (rc != VERR_CFGM_VALUE_NOT_FOUND) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"RestrictAccess\" value")); /** @cfgm{RequireExactPolicyMatch, boolean, false} * Whether to require that the current security and promiscuous policies of * the network is exactly as the ones specified in this open network * request. Use this with RequireAsRestrictivePolicy to prevent * restrictions from being lifted. If no further policy changes are * desired, apply the relevant fixed flags. */ rc = CFGMR3QueryBoolDef(pCfg, "RequireExactPolicyMatch", &f, false); if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"RequireExactPolicyMatch\" value")); if (f) OpenReq.fFlags |= INTNET_OPEN_FLAGS_REQUIRE_EXACT; /** @cfgm{RequireAsRestrictivePolicy, boolean, false} * Whether to require that the security and promiscuous policies of the * network is at least as restrictive as specified this request specifies * and prevent them being lifted later on. */ rc = CFGMR3QueryBoolDef(pCfg, "RequireAsRestrictivePolicy", &f, false); if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"RequireAsRestrictivePolicy\" value")); if (f) OpenReq.fFlags |= INTNET_OPEN_FLAGS_REQUIRE_AS_RESTRICTIVE_POLICIES; /** @cfgm{AccessPolicy, string, "none"} * The access policy of the network: * public, public+fixed, restricted, restricted+fixed, none or fixed. * * A "public" network is accessible to everyone on the same host, while a * "restricted" one is only accessible to VMs & services started by the * same user. The "none" policy, which is the default, means no policy * change or choice is made and that the current (existing network) or * default (new) policy should be used. */ static const DRVINTNETFLAG s_aAccessPolicyFlags[] = { { "public", INTNET_OPEN_FLAGS_ACCESS_PUBLIC }, { "restricted", INTNET_OPEN_FLAGS_ACCESS_RESTRICTED } }; rc = drvIntNetR3CfgGetPolicy(pDrvIns, "AccessPolicy", &s_aAccessPolicyFlags[0], RT_ELEMENTS(s_aAccessPolicyFlags), INTNET_OPEN_FLAGS_ACCESS_FIXED, &OpenReq.fFlags); AssertRCReturn(rc, rc); /** @cfgm{PromiscPolicyClients, string, "none"} * The network wide promiscuous mode policy for client (non-trunk) * interfaces: allow, allow+fixed, deny, deny+fixed, none or fixed. */ static const DRVINTNETFLAG s_aPromiscPolicyClient[] = { { "allow", INTNET_OPEN_FLAGS_PROMISC_ALLOW_CLIENTS }, { "deny", INTNET_OPEN_FLAGS_PROMISC_DENY_CLIENTS } }; rc = drvIntNetR3CfgGetPolicy(pDrvIns, "PromiscPolicyClients", &s_aPromiscPolicyClient[0], RT_ELEMENTS(s_aPromiscPolicyClient), INTNET_OPEN_FLAGS_PROMISC_FIXED, &OpenReq.fFlags); AssertRCReturn(rc, rc); /** @cfgm{PromiscPolicyHost, string, "none"} * The promiscuous mode policy for the trunk-host * connection: allow, allow+fixed, deny, deny+fixed, none or fixed. */ static const DRVINTNETFLAG s_aPromiscPolicyHost[] = { { "allow", INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_HOST }, { "deny", INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_HOST } }; rc = drvIntNetR3CfgGetPolicy(pDrvIns, "PromiscPolicyHost", &s_aPromiscPolicyHost[0], RT_ELEMENTS(s_aPromiscPolicyHost), INTNET_OPEN_FLAGS_PROMISC_FIXED, &OpenReq.fFlags); AssertRCReturn(rc, rc); /** @cfgm{PromiscPolicyWire, string, "none"} * The promiscuous mode policy for the trunk-host * connection: allow, allow+fixed, deny, deny+fixed, none or fixed. */ static const DRVINTNETFLAG s_aPromiscPolicyWire[] = { { "allow", INTNET_OPEN_FLAGS_PROMISC_ALLOW_TRUNK_WIRE }, { "deny", INTNET_OPEN_FLAGS_PROMISC_DENY_TRUNK_WIRE } }; rc = drvIntNetR3CfgGetPolicy(pDrvIns, "PromiscPolicyWire", &s_aPromiscPolicyWire[0], RT_ELEMENTS(s_aPromiscPolicyWire), INTNET_OPEN_FLAGS_PROMISC_FIXED, &OpenReq.fFlags); AssertRCReturn(rc, rc); /** @cfgm{IfPolicyPromisc, string, "none"} * The promiscuous mode policy for this * interface: deny, deny+fixed, allow-all, allow-all+fixed, allow-network, * allow-network+fixed, none or fixed. */ static const DRVINTNETFLAG s_aIfPolicyPromisc[] = { { "allow-all", INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW | INTNET_OPEN_FLAGS_IF_PROMISC_SEE_TRUNK }, { "allow-network", INTNET_OPEN_FLAGS_IF_PROMISC_ALLOW | INTNET_OPEN_FLAGS_IF_PROMISC_NO_TRUNK }, { "deny", INTNET_OPEN_FLAGS_IF_PROMISC_DENY } }; rc = drvIntNetR3CfgGetPolicy(pDrvIns, "IfPolicyPromisc", &s_aIfPolicyPromisc[0], RT_ELEMENTS(s_aIfPolicyPromisc), INTNET_OPEN_FLAGS_IF_FIXED, &OpenReq.fFlags); AssertRCReturn(rc, rc); /** @cfgm{TrunkPolicyHost, string, "none"} * The trunk-host policy: promisc, promisc+fixed, enabled, enabled+fixed, * disabled, disabled+fixed, none or fixed * * This can be used to prevent packages to be routed to the host. */ static const DRVINTNETFLAG s_aTrunkPolicyHost[] = { { "promisc", INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED | INTNET_OPEN_FLAGS_TRUNK_HOST_PROMISC_MODE }, { "enabled", INTNET_OPEN_FLAGS_TRUNK_HOST_ENABLED }, { "disabled", INTNET_OPEN_FLAGS_TRUNK_HOST_DISABLED } }; rc = drvIntNetR3CfgGetPolicy(pDrvIns, "TrunkPolicyHost", &s_aTrunkPolicyHost[0], RT_ELEMENTS(s_aTrunkPolicyHost), INTNET_OPEN_FLAGS_TRUNK_FIXED, &OpenReq.fFlags); AssertRCReturn(rc, rc); /** @cfgm{TrunkPolicyWire, string, "none"} * The trunk-host policy: promisc, promisc+fixed, enabled, enabled+fixed, * disabled, disabled+fixed, none or fixed. * * This can be used to prevent packages to be routed to the wire. */ static const DRVINTNETFLAG s_aTrunkPolicyWire[] = { { "promisc", INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED | INTNET_OPEN_FLAGS_TRUNK_WIRE_PROMISC_MODE }, { "enabled", INTNET_OPEN_FLAGS_TRUNK_WIRE_ENABLED }, { "disabled", INTNET_OPEN_FLAGS_TRUNK_WIRE_DISABLED } }; rc = drvIntNetR3CfgGetPolicy(pDrvIns, "TrunkPolicyWire", &s_aTrunkPolicyWire[0], RT_ELEMENTS(s_aTrunkPolicyWire), INTNET_OPEN_FLAGS_TRUNK_FIXED, &OpenReq.fFlags); AssertRCReturn(rc, rc); /** @cfgm{ReceiveBufferSize, uint32_t, 318 KB} * The size of the receive buffer. */ rc = CFGMR3QueryU32(pCfg, "ReceiveBufferSize", &OpenReq.cbRecv); if (rc == VERR_CFGM_VALUE_NOT_FOUND) OpenReq.cbRecv = 318 * _1K ; else if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"ReceiveBufferSize\" value")); /** @cfgm{SendBufferSize, uint32_t, 196 KB} * The size of the send (transmit) buffer. * This should be more than twice the size of the larges frame size because * the ring buffer is very simple and doesn't support splitting up frames * nor inserting padding. So, if this is too close to the frame size the * header will fragment the buffer such that the frame won't fit on either * side of it and the code will get very upset about it all. */ rc = CFGMR3QueryU32(pCfg, "SendBufferSize", &OpenReq.cbSend); if (rc == VERR_CFGM_VALUE_NOT_FOUND) OpenReq.cbSend = RT_ALIGN_Z(VBOX_MAX_GSO_SIZE * 3, _1K); else if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"SendBufferSize\" value")); if (OpenReq.cbSend < 128) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: The \"SendBufferSize\" value is too small")); if (OpenReq.cbSend < VBOX_MAX_GSO_SIZE * 3) LogRel(("DrvIntNet: Warning! SendBufferSize=%u, Recommended minimum size %u butes.\n", OpenReq.cbSend, VBOX_MAX_GSO_SIZE * 4)); /** @cfgm{IsService, boolean, true} * This alterns the way the thread is suspended and resumed. When it's being used by * a service such as LWIP/iSCSI it shouldn't suspend immediately like for a NIC. */ rc = CFGMR3QueryBool(pCfg, "IsService", &pThis->fActivateEarlyDeactivateLate); if (rc == VERR_CFGM_VALUE_NOT_FOUND) pThis->fActivateEarlyDeactivateLate = false; else if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"IsService\" value")); /** @cfgm{IgnoreConnectFailure, boolean, false} * When set only raise a runtime error if we cannot connect to the internal * network. */ bool fIgnoreConnectFailure; rc = CFGMR3QueryBoolDef(pCfg, "IgnoreConnectFailure", &fIgnoreConnectFailure, false); if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"IgnoreConnectFailure\" value")); /** @cfgm{Workaround1, boolean, depends} * Enables host specific workarounds, the default is depends on the whether * we think the host requires it or not. */ bool fWorkaround1 = false; #ifdef RT_OS_DARWIN if (OpenReq.fFlags & INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE) { char szKrnlVer[256]; RTSystemQueryOSInfo(RTSYSOSINFO_RELEASE, szKrnlVer, sizeof(szKrnlVer)); if (strcmp(szKrnlVer, "10.7.0") >= 0) { LogRel(("IntNet#%u: Enables the workaround (ip_tos=0) for the little endian ip header checksum problem\n")); fWorkaround1 = true; } } #endif rc = CFGMR3QueryBoolDef(pCfg, "Workaround1", &fWorkaround1, fWorkaround1); if (RT_FAILURE(rc)) return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Configuration error: Failed to get the \"Workaround1\" value")); if (fWorkaround1) OpenReq.fFlags |= INTNET_OPEN_FLAGS_WORKAROUND_1; LogRel(("IntNet#%u: szNetwork={%s} enmTrunkType=%d szTrunk={%s} fFlags=%#x cbRecv=%u cbSend=%u fIgnoreConnectFailure=%RTbool\n", pDrvIns->iInstance, OpenReq.szNetwork, OpenReq.enmTrunkType, OpenReq.szTrunk, OpenReq.fFlags, OpenReq.cbRecv, OpenReq.cbSend, fIgnoreConnectFailure)); #ifdef RT_OS_DARWIN /* Temporary hack: attach to a network with the name 'if=en0' and you're hitting the wire. */ if ( !OpenReq.szTrunk[0] && OpenReq.enmTrunkType == kIntNetTrunkType_None && !strncmp(pThis->szNetwork, RT_STR_TUPLE("if=en")) && RT_C_IS_DIGIT(pThis->szNetwork[sizeof("if=en") - 1]) && !pThis->szNetwork[sizeof("if=en")]) { OpenReq.enmTrunkType = kIntNetTrunkType_NetFlt; strcpy(OpenReq.szTrunk, &pThis->szNetwork[sizeof("if=") - 1]); } /* Temporary hack: attach to a network with the name 'wif=en0' and you're on the air. */ if ( !OpenReq.szTrunk[0] && OpenReq.enmTrunkType == kIntNetTrunkType_None && !strncmp(pThis->szNetwork, RT_STR_TUPLE("wif=en")) && RT_C_IS_DIGIT(pThis->szNetwork[sizeof("wif=en") - 1]) && !pThis->szNetwork[sizeof("wif=en")]) { OpenReq.enmTrunkType = kIntNetTrunkType_NetFlt; OpenReq.fFlags |= INTNET_OPEN_FLAGS_SHARED_MAC_ON_WIRE; strcpy(OpenReq.szTrunk, &pThis->szNetwork[sizeof("wif=") - 1]); } #endif /* DARWIN */ /* * Create the event semaphore, S/G cache and xmit critsect. */ rc = RTSemEventCreate(&pThis->hRecvEvt); if (RT_FAILURE(rc)) return rc; rc = RTMemCacheCreate(&pThis->hSgCache, sizeof(PDMSCATTERGATHER), 0, UINT32_MAX, NULL, NULL, pThis, 0); if (RT_FAILURE(rc)) return rc; rc = PDMDrvHlpCritSectInit(pDrvIns, &pThis->XmitLock, RT_SRC_POS, "IntNetXmit"); if (RT_FAILURE(rc)) return rc; /* * Create the interface. */ OpenReq.hIf = INTNET_HANDLE_INVALID; rc = PDMDrvHlpSUPCallVMMR0Ex(pDrvIns, VMMR0_DO_INTNET_OPEN, &OpenReq, sizeof(OpenReq)); if (RT_FAILURE(rc)) { if (fIgnoreConnectFailure) { /* * During VM restore it is fatal if the network is not available because the * VM settings are locked and the user has no chance to fix network settings. * Therefore don't abort but just raise a runtime warning. */ PDMDrvHlpVMSetRuntimeError(pDrvIns, 0 /*fFlags*/, "HostIfNotConnecting", N_ ("Cannot connect to the network interface '%s'. The virtual " "network card will appear to work but the guest will not " "be able to connect. Please choose a different network in the " "network settings"), OpenReq.szTrunk); return VERR_PDM_NO_ATTACHED_DRIVER; } return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS, N_("Failed to open/create the internal network '%s'"), pThis->szNetwork); } AssertRelease(OpenReq.hIf != INTNET_HANDLE_INVALID); pThis->hIf = OpenReq.hIf; Log(("IntNet%d: hIf=%RX32 '%s'\n", pDrvIns->iInstance, pThis->hIf, pThis->szNetwork)); /* * Get default buffer. */ INTNETIFGETBUFFERPTRSREQ GetBufferPtrsReq; GetBufferPtrsReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC; GetBufferPtrsReq.Hdr.cbReq = sizeof(GetBufferPtrsReq); GetBufferPtrsReq.pSession = NIL_RTR0PTR; GetBufferPtrsReq.hIf = pThis->hIf; GetBufferPtrsReq.pRing3Buf = NULL; GetBufferPtrsReq.pRing0Buf = NIL_RTR0PTR; rc = PDMDrvHlpSUPCallVMMR0Ex(pDrvIns, VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS, &GetBufferPtrsReq, sizeof(GetBufferPtrsReq)); if (RT_FAILURE(rc)) return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS, N_("Failed to get ring-3 buffer for the newly created interface to '%s'"), pThis->szNetwork); AssertRelease(VALID_PTR(GetBufferPtrsReq.pRing3Buf)); pThis->pBufR3 = GetBufferPtrsReq.pRing3Buf; pThis->pBufR0 = GetBufferPtrsReq.pRing0Buf; /* * Register statistics. */ PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->pBufR3->Recv.cbStatWritten, "Bytes/Received", STAMUNIT_BYTES, "Number of received bytes."); PDMDrvHlpSTAMRegCounterEx(pDrvIns, &pThis->pBufR3->Send.cbStatWritten, "Bytes/Sent", STAMUNIT_BYTES, "Number of sent bytes."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->Recv.cOverflows, "Overflows/Recv", "Number overflows."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->Send.cOverflows, "Overflows/Sent", "Number overflows."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->Recv.cStatFrames, "Packets/Received", "Number of received packets."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->Send.cStatFrames, "Packets/Sent", "Number of sent packets."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatReceivedGso, "Packets/Received-Gso", "The GSO portion of the received packets."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatSentGso, "Packets/Sent-Gso", "The GSO portion of the sent packets."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatSentR0, "Packets/Sent-R0", "The ring-0 portion of the sent packets."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->cStatLost, "Packets/Lost", "Number of lost packets."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->cStatYieldsNok, "YieldOk", "Number of times yielding helped fix an overflow."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->cStatYieldsOk, "YieldNok", "Number of times yielding didn't help fix an overflow."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->pBufR3->cStatBadFrames, "BadFrames", "Number of bad frames seed by the consumers."); PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatSend1, "Send1", "Profiling IntNetR0IfSend."); PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatSend2, "Send2", "Profiling sending to the trunk."); PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatRecv1, "Recv1", "Reserved for future receive profiling."); PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatRecv2, "Recv2", "Reserved for future receive profiling."); PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->pBufR3->StatReserved, "Reserved", "Reserved for future use."); #ifdef VBOX_WITH_STATISTICS PDMDrvHlpSTAMRegProfileAdv(pDrvIns, &pThis->StatReceive, "Receive", "Profiling packet receive runs."); PDMDrvHlpSTAMRegProfile(pDrvIns, &pThis->StatTransmit, "Transmit", "Profiling packet transmit runs."); #endif PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitWakeupR0, "XmitWakeup-R0", "Xmit thread wakeups from ring-0."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitWakeupR3, "XmitWakeup-R3", "Xmit thread wakeups from ring-3."); PDMDrvHlpSTAMRegCounter(pDrvIns, &pThis->StatXmitProcessRing, "XmitProcessRing", "Time xmit thread was told to process the ring."); /* * Create the async I/O threads. * Note! Using a PDM thread here doesn't fit with the IsService=true operation. */ rc = RTThreadCreate(&pThis->hRecvThread, drvR3IntNetRecvThread, pThis, 0, RTTHREADTYPE_IO, RTTHREADFLAGS_WAITABLE, "INTNET-RECV"); if (RT_FAILURE(rc)) { AssertRC(rc); return rc; } rc = SUPSemEventCreate(pThis->pSupDrvSession, &pThis->hXmitEvt); AssertRCReturn(rc, rc); rc = PDMDrvHlpThreadCreate(pDrvIns, &pThis->pXmitThread, pThis, drvR3IntNetXmitThread, drvR3IntNetXmitWakeUp, 0, RTTHREADTYPE_IO, "INTNET-XMIT"); AssertRCReturn(rc, rc); #ifdef VBOX_WITH_DRVINTNET_IN_R0 /* * Resolve the ring-0 context interface addresses. */ rc = pDrvIns->pHlpR3->pfnLdrGetR0InterfaceSymbols(pDrvIns, &pThis->INetworkUpR0, sizeof(pThis->INetworkUpR0), "drvIntNetUp_", PDMINETWORKUP_SYM_LIST); AssertLogRelRCReturn(rc, rc); #endif /* * Activate data transmission as early as possible */ if (pThis->fActivateEarlyDeactivateLate) { ASMAtomicXchgSize(&pThis->enmRecvState, RECVSTATE_RUNNING); RTSemEventSignal(pThis->hRecvEvt); drvR3IntNetUpdateMacAddress(pThis); drvR3IntNetSetActive(pThis, true /* fActive */); } return rc; } /** * Internal networking transport driver registration record. */ const PDMDRVREG g_DrvIntNet = { /* u32Version */ PDM_DRVREG_VERSION, /* szName */ "IntNet", /* szRCMod */ "VBoxDDRC.rc", /* szR0Mod */ "VBoxDDR0.r0", /* pszDescription */ "Internal Networking Transport Driver", /* fFlags */ #ifdef VBOX_WITH_DRVINTNET_IN_R0 PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT | PDM_DRVREG_FLAGS_R0, #else PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT, #endif /* fClass. */ PDM_DRVREG_CLASS_NETWORK, /* cMaxInstances */ ~0U, /* cbInstance */ sizeof(DRVINTNET), /* pfnConstruct */ drvR3IntNetConstruct, /* pfnDestruct */ drvR3IntNetDestruct, /* pfnRelocate */ drvR3IntNetRelocate, /* pfnIOCtl */ NULL, /* pfnPowerOn */ drvR3IntNetPowerOn, /* pfnReset */ NULL, /* pfnSuspend */ drvR3IntNetSuspend, /* pfnResume */ drvR3IntNetResume, /* pfnAttach */ NULL, /* pfnDetach */ NULL, /* pfnPowerOff */ drvR3IntNetPowerOff, /* pfnSoftReset */ NULL, /* u32EndVersion */ PDM_DRVREG_VERSION }; #endif /* IN_RING3 */